Framed by the mountains of the Alaska Range, the Denali Fault is easy to spot on a map. Denali Fault synonyms, Denali Fault pronunciation, Denali Fault translation, English dictionary definition of Denali Fault. Denali Fault.
The Denali Fault earthquake ruptured the Earth's surface for 209 miles, crossing beneath the vital Trans-Alaska Oil Pipeline, which carries 17% of the U.S. domestic oil supply.
Details. View south along the Trans Alaska Pipeline in the zone where it was engineered for the Denali fault. Alaska is the most geologically active part of the United States. The pipeline crosses the Denali fault some 90 miles south of Fairbanks. The fault trace passes beneath the pipeline between the 2nd and 3rd slider supports at the far end of the zone. This same earthquake offset the Alaska pipeline some 14 feet, which the pipeline was engineered and did accommodate. The magnitude 7.9 earthquake that occurred in south-central Alaska on November 3, 2002 ruptured a 336-km long segment of the Denali Fault. The survival of the pipeline in the Denali Fault earthquake was the result of careful engineering to meet stringent earthquake design specifications based on geologic studies done in the early 1970's by the U.S. Geological Survey, Woodward-Lundgren and Associates, and others in conjunction with the Alyeska Pipeline Service Company.
Notice how the Trans-Alaska Pipeline is built in a zigzag pattern?
Denali Fault/Pipeline view. Computers can identify areas that should be checked after a large earthquake. Alyeska Pipeline Service Company has operated the pipeline for its owner companies since startup in 1977.
Image Dimensions: 1536 x 1152. Although slightly damaged by movement on the fault and by intense shaking, the pipeline did not break in the quake, averting a major economic and environmental disaster. A major earthquake along the fault could cause the pipeline to rupture, spilling crude oil into the surrounding environment. The pipeline has an earthquake detection system that measures ground movement. This allows the pipeline to expand and contract due to extreme temperature change or earthquakes. The fault trace passes beneath the pipeline between the 2nd and 3rd slider supports at the far end of the zone. ... Purdue University website on GPS research on Denali. Noun 1. Trace of the Denali Fault after the 7.9 magnitude earthquake of 3 November 2002, Alaska, USA.
Between the Richardson Highway the Tok Cutoff, a section of the Glenn Highway that connects Tok and Glennallen, the maximum offsets on the Denali Fault were observed. In addition to the Denali Fault, a pipeline from Fairbanks to Anchorage along the Parks Highway would cross the Castle Mountain Fault in the lower Susitna River Valley.
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